题目内容
0.125×0.25×32
(
+
+
)×48
×
+
÷
．
(
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 5 |
| 7 |
| 4 |
| 5 |
| 8 |
| 1 |
| 4 |
| 8 |
| 5 |
（1）0.125×0.25×32，
=0.125×0.25×8×4，
=（0.125×8）×（0.25×4），
=1×1，
=1；
（2）（
+
+
）×48，
=
×48+
×48+
×48，
=16+12+9.6，
=37.6；
（3）
×
+
÷
，
=
×
+
×
，
=（
+
）×
，
=2×
，
=1.25．
=0.125×0.25×8×4，
=（0.125×8）×（0.25×4），
=1×1，
=1；
（2）（
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 5 |
=
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 5 |
=16+12+9.6，
=37.6；
（3）
| 7 |
| 4 |
| 5 |
| 8 |
| 1 |
| 4 |
| 8 |
| 5 |
=
| 7 |
| 4 |
| 5 |
| 8 |
| 1 |
| 4 |
| 5 |
| 8 |
=（
| 7 |
| 4 |
| 1 |
| 4 |
| 5 |
| 8 |
=2×
| 5 |
| 8 |
=1.25．
练习册系列答案
相关题目